Improvement in paper-calendering machines



a. n. wnll'l'lifl. PAPER CALENDERING MACHINE. No. 184,054.

Patented Nov. 7,-11876.

, ly practiced.

\NATHAN H. WHITTEN, or noLYoKn, MASSACHUSETTS, ASSIGNOR To HOLYOKEMACHINE COMPANY, or SAME PLACE.

IMPROVEMENT IN PAPER-CALENDERING;MACHINES. j

Specification forming part of Letters Patent No. 1 84,054, datedNovember 7, 1876; application filed l August 26, 1876. I a I provedGalendering-Machine of which the fol lowing is a specification:

This invention relates to .machines for cal' endering paper or othermaterial, and the in-j vention has special reference to the combination,with the calendering-rollers, of reels or rolls, on which the paper orother material is wound, and from which itis taken, these reels orrollers being arranged at the same side of the calendering-rollers,thereby saving much valuable time, enabling the machine to take up lessfloor-space, and preventing the removal of the paper from one to theother side of the calendering-rollers, as is now common- Figure 1represents the invention in vertical section on lines at as, Fig. 2; andFig. 2 represents the invention in front view.

The calendering-rollers a, four being shown, are mounted, as usual, instandards 12. These rollers are sufficiently close together to nip thepaper passing between to properly calender its surface, and the pressureof the rollers is regulated in any usual way. In this instance the lowerroller of the series is driven by means of a belt on a pulley, c, at theend of thelower roller. (See Fig. 2.) The paper or material 0 to becalendered is led from a roller, 0, over the top calender-roller, thencebetween it and the second, and then between the second and third, andthe third and fourth rollers, and to a winding-roller, d, Fig. 1, uponwhich it is wound as it leaves the calenderingrollers, as indicated inthe drawing in dotted lines. The roller from which the paper is taken tobe calendered, and the roller upon which it is wound when calendered,are both placed at the same side of the calenderingrollers, and in thisinstance are both supported in bearings f f having a common center, g,supported in hearings in brackets or suitable standards 13, so that therotating frame or bearings carrying the rollers c d may be turned aboutthe axis g, to bring either the roller 0 or.

d uppermost. A disk,j, on axis 9, in connectlon with a pin or screw, k,serves as a locking device for the bearing-frame f in both the ard 4 Incalenderin g paper it is customary to pass it between thecalendering-rollers from one to six times, and with a machine ofordinary con; struction it is necessary to remove the roll of paper eachtime it passes through to the rear side of the calendering-machine backto the front side of the machine to be again run through. The reels orrolls of paper are heavy, and considerable timeis required to move themfrom the back to the front of the machine, and to remount them inbearings, and the paper is often injured in changing its position.

In this machine the paper is Wound'on a reel or roll located at thatside of the calendering-rollers at which the paper-delivering roller orreel is located, and after the paper passes from one roller through thecalendering-machine and is wound upon the other roller, to repeat theoperation, it is only necessary to semi-rotate the frame about the axis9, thereby bringing the lower of the rollers c or d, then thereceiving-roller, to the top, when it acts as the delivering-roller andthe roller just before at the top, and then acting as thedelivering-roller will then act in the new and lower position as thereceiving-roller. This change of position of rollers 0 cl is quickly andeasily made, the paper is not injured by handling, and by placing bothrollers at the same side of the machine much valuable floor-space issaved in the mill, which is a matter of great importance. The roller 0or d,- bn which the paper is wound, or the one acting as thereceiving-roller, is driven, in this instance, by means ofa belt placedon a pulley, l, secured to a shaft, m, sustained in a suitable frame, a,and provided with a sliding clutch or coupling,0, (shown in section,Fig. 2,) and provided with a central opening of proper shape to receivethe squared or other suitably-shaped end of the shafts p or q of therollers c or d, such clutch engaging and rotating, as shown in Fig. 2,the shaft q of roller d, winding the paper on the lowermost roller. Theclutch o is made longitudinally movable on its shaft m by means of aproper shifter, r. The end of the shaft of the upper roller, then thedeliveringroller, (in this instance shown as shaft 19,) during the timethcpaper is being drawn from it, has its end placed within a slidingclutch, s,

- on a shaft, 25, provided with a pulley, a, against or about which isplaced a friction device, a brake, or band of any usual or properconstruction, such friction devices acting to maintain proper tension onthe web of paper passin g to the calendering-rollers. The frame carryingthe rollers c 01 may be rotated by any suitable mechanism; as, forinstance, the disk j may be provided at its periphery with teeth, andmay be engaged bya pinion on a shaft provided with a proper handle, andany suitable holding or looking devices may be used to hold the framestationary.

The gist of the invention consists in placing both reels or rollers atthe same side of the calendering-rollers, and they may be supported inany suitable Way to permit them to be readily changed as to position.

I am aware that in printing-presses the paper has been led into andtaken from the same end of the machine by means of rollers.

I claim- 1. The combination, with a series of calendering-rollers, a, ofreels or rollers c d placed at one side of the calendering-rollers, oneroller holding the material to be calendered and to be delivered to thecalendering-rollers, and the other receiving the calendered material atthat side of the calendering-rollers at which it was delivered to thecalendering-rollers, as and for the purpose described.

2. The combination, with calendering-rollers, of a rotating frame andtwo rollers supported by such frame, one roller delivering and the otherreceiving the material, substantially as described.

3. The rotating frame and its rollers, in combination with a pulley andclutch connecting with and rotating either roller to receive thematerial from the other roller, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

NATHAN H. WHITTEN.

Witnesses:

S. F. STEBBINs, E. P. BALL.

